Daikin AKZ 439 series chiller units achieve high energy saving by utilising their invertor driven IPM motor technology.
High accuracy oil temperature control
Acclaimed ±0.1°C oil temperature control has been extended to cover an even wider range.
Refrigerant gas leakage detection alarm function
An alarm signal is output when the refrigerant gas would be leaked (as cooling circuit failure).
Oil temperature warning function
A warning signal can be output when the oil temperature or air temperature strays outside arbitrarily setting range.
Auto tuning function
This function substantially cuts the time taken for adjustment during trial operation by automatically setting the gain when oil temperature control is not stable in the factory setting status or when optimization is required.
999-hour timer function (ON timer)
The operation start time can be set from 0 to 999 hours in one-hour units.
Preventive maintenance function
A warning signal is output to notify that maintenance is required when the air filter or condenser becomes clogged. If the thermistor fails (out of control), emergency operation is possible by selecting another operation mode. This function minimizes the factors of line stoppages.